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cross-linking agent, which in- cludes a blocked isocyanate as the essential component and may fur- ther include a melamine resin; a blocked isocyanate dissociation catalyst, which at least includes a dibutyltin dicarboxylate; and a pigment. AQUEOUS COATING COMPOSITION U.S. Patent 5,981,653. Nov. 9, 1999 0. Wilmes et al., assignors to Bayer AG Leverkusen, Germany A process for the production of an aqueous dispersion, which forms powder coatings at room temper- ature, has an average particle size of 0.1 to 10 fLm, and forms a film and cross-links under the action of heat. POWDER COATING COMPOSlnON U.S. Patent 5,981,696. Nov. 9, 1999 D. Saatweber et al., assignors to Herberts GmbH, Germany 2A process for producing a powder coating composition comprising dissolving in a low molecular weight compound at a pressure and temperature, which maintain the low molecular weight com- pound in a liquid state, one or more solid base resins and one or more solid hardeners to form a solution, and depressurizing the solution to form the powder coat- ing composition, wherein the low molecular weight compound ex- ists in gaseous form under normal conditions of pressure and tem- perature and is inert to the base resins and hardeners. BRIGHTENER ADDITIVE U.S. Patent 5,981,793. Nov. 9, 1999 E. Knaak et al., assignors to Blasberg Oberflachentechnik GmbH, Solingen, Germany A slightly water-soluble metal salt for use as a gloss additive in the electrolytic deposition of met- als. AlRLESS PAINT SPRAYER SYSTEM U.S. Patent 5,984,646. Nov. 16, 1999 W.E. Renfro and C. T. Scholl. assignors to Accuspray Inc., Cleveland A reciprocating hydraulic motor and pump assembly for use in an airless paint spray system. COATED ABRASIVES U.S. Patent 5,984,989. Nov. 16, 1999 N. Davison and A.J. Ball. assignors to 3M Innovative Properties Co., St. Paul, Minn. ATTENTION METAL FINISHERS ONE CALL FOR ALL OF YOUR TESTING NEEDS 8< PROMPT SERVICE 800-637-CHEM (2436) OR FAX 717-235-0609 ,/ BATH CONTROL TESTING REAGENTS ,/ EM SCIENCE REAGENT CHEMICALS ,/ FISHER SCIENTIFIC DEALER ,/ LAB ApPARATUS & EQUIPMENT ,/ NIST TRACEABILITY ,/ pH METERS & ELECTRODES C'a I4VIN(:; lltl MI TAl IINISttlNG INDUSTRY SINe 1980) HAWK CREEK LABORATORY, INC. 6821 SIMPSON ROAD. GLENROCK. PA 17327 E-mail: [email protected] Dealer InquiriesInvited Circle 030 on reader information card November 2000 Circle 006 on reader information card 97
